<template>
  <div class="screen-container" :style="containerStyle">
    <header class="screen-header">
      <div>
        <img :src="headerSrc" alt />
      </div>
      <span class="logo">
        <!-- <img :src="logoSrc" alt /> -->
        dataVisualization
      </span>
      <span class="title">电商平台实时监控系统</span>
      <div class="title-right">
        <img :src="themeSrc" class="qiehuan" @click="handleChangeTheme" />
        <span class="datetime">{{ time }}</span>
      </div>
    </header>
    <div class="screen-body">
      <section class="screen-left">
        <div id="left-top" :class="fullScreenStatus.trend ? 'fullScreen' : ''">
          <!-- 销量趋势图表 -->
          <Trend ref="trend"></Trend>
          <div class="resize">
            <!-- icon-compress-alt -->
            <span @click="changeSize('trend')" :class="['iconfont', fullScreenStatus.trend ? 'icon-compress-alt' : 'icon-expand-alt']"></span>
          </div>
        </div>
        <div id="left-bottom" :class="fullScreenStatus.seller ? 'fullScreen' : ''">
          <!-- 商家销售金额图表 -->
          <Seller ref="seller"></Seller>
          <div class="resize">
            <!-- icon-compress-alt -->
            <span @click="changeSize('seller')" :class="['iconfont', fullScreenStatus.seller ? 'icon-compress-alt' : 'icon-expand-alt']"></span>
          </div>
        </div>
      </section>
      <section class="screen-middle">
        <div id="middle-top" :class="fullScreenStatus.map ? 'fullScreen' : ''">
          <!-- 商家分布图表 -->
          <Map ref="map"></Map>
          <div class="resize">
            <!-- icon-compress-alt -->
            <span @click="changeSize('map')" :class="['iconfont', fullScreenStatus.map ? 'icon-compress-alt' : 'icon-expand-alt']"></span>
          </div>
        </div>
        <div id="middle-bottom" :class="fullScreenStatus.rank ? 'fullScreen' : ''">
          <!-- 地区销量排行图表 -->
          <Rank ref="rank"></Rank>
          <div class="resize">
            <!-- icon-compress-alt -->
            <span @click="changeSize('rank')" :class="['iconfont', fullScreenStatus.rank ? 'icon-compress-alt' : 'icon-expand-alt']"></span>
          </div>
        </div>
      </section>
      <section class="screen-right">
        <div id="right-top" :class="fullScreenStatus.hot ? 'fullScreen' : ''">
          <!-- 热销商品占比图表 -->
          <Hot ref="hot"></Hot>
          <div class="resize">
            <!-- icon-compress-alt -->
            <span @click="changeSize('hot')" :class="['iconfont', fullScreenStatus.hot ? 'icon-compress-alt' : 'icon-expand-alt']"></span>
          </div>
        </div>
        <div id="right-bottom" :class="fullScreenStatus.stock ? 'fullScreen' : ''">
          <!-- 库存销量分析图表 -->
          <Stock ref="stock"></Stock>
          <div class="resize">
            <!-- icon-compress-alt -->
            <span @click="changeSize('stock')" :class="['iconfont', fullScreenStatus.stock ? 'icon-compress-alt' : 'icon-expand-alt']"></span>
          </div>
        </div>
      </section>
    </div>
  </div>
</template>

<script>
import Trend from '@/components/Trend'
import Seller from '@/components/Seller'
import Map from '@/components/Map'
import Rank from '@/components/Rank'
import Hot from '@/components/Hot'
import Stock from '@/components/Stock'
import { mapState } from 'vuex'
import { getThemeValue } from '@/utils/theme_utils'
export default {
  data () {
    return {
      fullScreenStatus: {
        trend: false,
        seller: false,
        map: false,
        rank: false,
        hot: false,
        stock: false
      },
      time: null,
      timer: null
    }
  },
  components: {
    Seller,
    Stock,
    Trend,
    Map,
    Hot,
    Rank
  },
  created () {
    this.$socket.registerCallBack('fullScreen', this.receiveData)
    this.$socket.registerCallBack('themeChange', this.receiveThemeChange)
  },
  destroyed () {
    this.$socket.unRegisterCallBack('fullScreen')
    this.$socket.unRegisterCallBack('themeChange')
    clearInterval(this.timer)
  },
  mounted () {
    this.getTime()
  },
  computed: {
    ...mapState(['theme']),
    logoSrc () {
      return '/static/img/' + getThemeValue(this.theme).logoSrc
    },
    headerSrc () {
      return '/static/img/' + getThemeValue(this.theme).headerBorderSrc
    },
    themeSrc () {
      return '/static/img/' + getThemeValue(this.theme).themeSrc
    },
    containerStyle () {
      return {
        backgroundColor: getThemeValue(this.theme).backgroundColor,
        color: getThemeValue(this.theme).titleColor
      }
    }
  },
  methods: {
    changeSize (chartName) {
      // 数据驱动视图
      // this.fullScreenStatus[chartName] = !this.fullScreenStatus[chartName]
      // 让图表重新自适应
      // this.$nextTick(() => {
      //   this.$refs[chartName].screenAdapter()
      // })

      // 所有连接状态的客户端的【联动效果】
      const targetValue = !this.fullScreenStatus[chartName]
      this.$socket.send({
        action: 'fullScreen',
        socketType: 'fullScreen',
        chartName: chartName,
        value: targetValue
      })
    },
    // 接收到服务端的响应数据后 的 回调函数
    receiveData (data) {
      const chartName = data.chartName
      const targetValue = data.value
      this.fullScreenStatus[chartName] = targetValue
      // 当数据变化时，组件重新渲染完毕之后执行
      this.$nextTick(() => {
        this.$refs[chartName].screenAdapter()
      })
    },
    handleChangeTheme () {
      // 修改Vuex中的数据
      // this.$store.commit('changeTheme')

      // 【联动效果】
      this.$socket.send({
        action: 'themeChange',
        socketType: 'themeChange',
        chartName: '',
        value: ''
      })
    },
    receiveThemeChange () {
      this.$store.commit('changeTheme')
    },
    getTime () {
      this.timer && clearInterval(this.timer)
      this.timer = setInterval(() => {
        const date = new Date()
        const y = date.getFullYear()
        const m = date.getMonth() + 1
        const d = date.getDate()
        const h = date.getHours()
        const min = date.getMinutes()
        const s = date.getSeconds()
        this.time = `${y}-${m}-${d} ${h}:${min}:${s}`
      }, 1000)
    }
  }
}
</script>

<style lang="less" scoped>
// 全屏样式的定义
.fullScreen {
  position: fixed!important;
  top: 0!important;
  left: 0!important;
  width: 100%!important;
  height: 100%!important;
  margin: 0!important;
  z-index: 1000;
}
.screen-container {
  width: 100%;
  height: 100%;
  padding: 0 20px;
  background-color: #161522;
  color: #fff;
  box-sizing: border-box;
}
.screen-header {
  width: 100%;
  height: 64px;
  font-size: 20px;
  position: relative;
  > div {
    img {
      width: 100%;
    }
  }
  .title {
    position: absolute;
    left: 50%;
    top: 50%;
    font-size: 20px;
    transform: translate(-50%, -50%);
  }
  .title-right {
    display: flex;
    align-items: center;
    position: absolute;
    right: 0px;
    top: 50%;
    transform: translateY(-80%);
  }
  .qiehuan {
    width: 28px;
    height: 21px;
    cursor: pointer;
  }
  .datetime {
    font-size: 15px;
    margin-left: 10px;
  }
  .logo {
    position: absolute;
    left: 0px;
    top: 50%;
    transform: translateY(-80%);
    img {
      height: 35px;
      width: 128px;
    }
  }
}
.screen-body {
  width: 100%;
  height: 100%;
  display: flex;
  margin-top: 10px;
  .screen-left {
    height: 100%;
    width: 27.6%;
    #left-top {
      position: relative;
      height: 53%;
    }
    #left-bottom {
      height: 31%;
      margin-top: 25px;
      position: relative;
    }
  }
  .screen-middle {
    height: 100%;
    width: 41.5%;
    margin-left: 1.6%;
    margin-right: 1.6%;
    #middle-top {
      width: 100%;
      height: 56%;
      position: relative;
    }
    #middle-bottom {
      margin-top: 25px;
      width: 100%;
      height: 28%;
      position: relative;
    }
  }
  .screen-right {
    height: 100%;
    width: 27.6%;
    #right-top {
      height: 46%;
      position: relative;
    }
    #right-bottom {
      height: 38%;
      margin-top: 25px;
      position: relative;
    }
  }
}
.resize {
  position: absolute;
  right: 20px;
  top: 20px;
  cursor: pointer;
}
</style>
